Dietrich Bonhoeffer was a pastor to Germans in London from 1933 to 1935. Of his preaching style…

He was not the sort of preacher who stood up in the pulpit with just a few notes; every sermon was written out word for word!

(Ferdinand SchlingensiepenDietrich Bonhoeffer 1906-1945: Martyr, Thinker, Man of Resistance, 145)